M-21
WG972-E2, DF972-E2, WSM
GASOLINE / LPG ENGINE
[6] INLET MANIFOLD
Part of coolant heated in the water jacket is
channeled to the inlet manifold, where the hot coolant
heats the fuel-air mixture for better carburetion. Heating
effect is particularly good when the engine is running at
low speeds and with light load is cold weather, thus
improving fuel economy and acceleration.
[7] FUEL FILTER (FOR GASOLINE LINE)
The fuel filter is installed in the fuel line between the
fuel tank and the feed pump.
As the fuel flows from the inlet (A) through the filter
element (1), the dirt and impurities in the fuel are filtered,
allowing only clean fuel to penetrate the inside of the filter
element. The cleaned fuel flows out from the outlet (B).
[8] ELECTRO MAGNETIC FUEL FEED PUMP (FOR GASOLINE LINE)
An electro magnetic pump uses a transistor that
causes the pump to start pumping fuel when the engine
is switched on.
Therefore, fuel is supplied to the carburetor
regardless of engine speed. This pump is driven by the
battery. It can therefore be operated even with the
engine being stopped.
(1) Intake Manifold
Type of filter element Accordion-pleated paper type
Material of filter element Cotton fiber
Filter mesh 15 µm (0.00059 in.)
(1) Filter Element A : Inlet
B : Outlet
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